discriminator: Meaning and Definition of

dis•crim•i•na•tor

Pronunciation: (di-skrim'u-nā"tur), [key]
— n.
  1. a person or thing that discriminates.
  2. a circuit in which the output is a function of some variation of an input signal from a fixed characteristic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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